First of all I want to thank everyone here!!! You have all helped me understand many basic and complex physics principles, to which I am very grateful for. If an atom is ionized in a high voltage field, the free electrons are attracted toward the positive charge. I have heard that the velocity of the electron is directly related to the strength of the positive charge (which makes sense), and this also tells us the energy of the electron. If the electron is attracted toward a charge of 100V, what would the energy of the electron be, in eV? If this electron were to collide with an atom would it's full energy be given to the atom to cause collosional excitation and possibly ionization?